We have configured PulseAudio in Ubuntu to prefer newly plugged in audio devices, which up until 19.04 was uncontroversial. The bug here is that the new version of PulseAudio thinks logging in with an HDMI/DisplayPort monitor already attached counts as newly plugged-in.
If you need a workaround then see comment #3. Upstream is working on it so please keep an eye on: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/issues/749 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1847570 Title: PulseAudio automatically switches to HDMI sound output on login To manage notifications about this bug go to: https://bugs.launchpad.net/pulseaudio/+bug/1847570/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
